Zvinhu zvisingawanzoitiki zvepasi zvinosanganisiralanthanum(La),cerium(Ce),praseodymium(Pr),neodymium(Nd), promethium (Pm),samarium(Sm),europium(Eu),gadolinium(Gd),terbium(Tb),dysprosium(Dy),holmium(Ho),erbium(Er),thulium(Tm),ytterbium(Yb),lutetium(Lu),scandium(Sc), uyeyttrium(Y).Zita rechirungu ndiroRare Earth.Rare Earthmasimbi anowanzo kupfava, anoumbika, uye anodonhedza, uye anoratidza kunyanya kusimba reactivity sehupfu pakupisa kwepamusoro.Iri boka resimbi rine kusimba kwemakemikari kuita uye rine hukama hwakasimba hwehydrogen, kabhoni, nitrogen, okisijeni, sarufa, phosphorus, uye halogens.Izvo zviri nyore oxidized mumhepo, uye inoremarare earthsinogona kugadzira oxidation inodzivirira layer pamusoro pescandiumuyeyttriumpakamuri tembiricha.Naizvozvo,rare earth metalsanowanzo kuchengetwa muparafini kana mumidziyo yakavharwa yakazadzwa vacuum uye argon gasi.Rare pasizvinhu zvinogona kukamurwa kuva mapoka maviri: chiedzarare pasiuye inoremarare pasi, kunyanya iripo muchimiro chezvisingawanzo pasi oxides.China, Russia, United States, Australia nedzimwe nyika dzine matura epamusoro-sororare pasih zviwanikwa munyika.Rare pasianonyanya kushandiswa muminda yakadai se petroleum, makemikari engineering, metallurgy, machira, ceramic girazi, zvachose magineti zvinhu, etc. Ivo vanozivikanwa se "industrial monosodium glutamate", "industrial mavhitaminzi", uye "amai zvinhu zvitsva", uye vari. anokosha Strategic simbi zviwanikwa.
Nguva yekutumira: Nov-03-2023